In a move long theorized by fans, and supported through comments made earlier this year by Samuel L. Jackson, M. Night Shyamalan will return to the world of "Unbreakable" and "Split" for one more film. The filmmaker made the announcement earlier today via Twitter:

Universal quickly followed up on Shyamalan's tweet with an official release date and title; "Glass," starring Jackson as Elijah Price, aka "Unbreakable's" Mr. Glass, will arrive in theaters on January 18, 2019.

Bruce Willis will also return in his role as "Unbreakable's" David Dunn, while James McCoy will reprise his character from "Split," Kevin Wendell Crumb. Anya Taylor-Joy's Casey Cooke will also factor into the storyline, as Dunn, now a full-fledged superhero, apparently, tracks down The Beast (McCoy) while Mr. Glass pulls everyone's strings.

In the wake of "Split's" theatrical release and box office success, Jackson teased the possibility of a crossover film.

“I got a call and [Shyamalan] said, ‘Call me I wanna talk to you about something.’ And I called him, because I always do when I get a message from him always hoping [it’s Unbreakable 2]," Jackson said. "e said, ‘I just did this film called Split, I want you to see it,’ and I was like ‘OK, I’m down with that.’ I had no idea what Split was about or anything else, and he said, ‘We’ll talk after you see it.’ So I went to the arranged screening and I called him immediately and was like, ‘OK dude does this mean what I think it means?’ and he was like, ‘Well first we gotta see how the movie does’. And I think the movie’s done well enough now to merit the ‘OK, let’s put this together.’”

The official announcement and film summary is as follows:

M. Night Shyamalan brings together the narratives of two of his standout originals—2000’s UNBREAKABLE and last year’s SPLIT—in one explosive, all-new comic-book thriller: GLASS. From UNBREAKABLE, Bruce Willis returns as David Dunn as does Samuel L. Jackson as Elijah Price, known also by his pseudonym Mr. Glass. Joining from SPLIT are James McAvoy, reprising his role as Kevin Wendell Crumb and the multiple identities who reside within, and Anya Taylor-Joy as Casey Cooke, the only captive to survive an encounter with The Beast.

Following the conclusion of SPLIT, GLASS finds Dunn pursuing Crumb’s superhuman figure of The Beast in a series of escalating encounters, while the shadowy presence of Price emerges as an orchestrator who holds secrets critical to both men.

This riveting culmination of his worldwide blockbusters will be produced by Shyamalan and Jason Blum, who also produced the writer/director’s previous two films for Universal. They produce again with Ashwin Rajan and Marc Bienstock, and Steven Schneider, who will executive produce.